BOWDOIN (AP) — A man who police say killed four people in a home in rural Maine and then shot three others randomly on a busy interstate highway had been released four days earlier from prison, a state official said Wednesday.

Joseph Eaton, 34, was released Friday from the Maine Correctional Center in Windham, where he had been sentenced in March 2021, originally on a probation violation related to a previous crime, said Anna Black, director of governmental affairs for the Maine Department of Corrections.

Eaton had a criminal history with offenses serious enough to have prevented him from legally possessing a gun in Maine, according to state records.

The shootings in Maine began in the small town of Bowdoin, where four people were killed Tuesday. Then a chaotic scene developed in which shots were fired at vehicles on an interstate highway over 20 miles (32 kilometers) away in the community of Yarmouth, police said. Three people were shot there, and one remained in critical condition Wednesday.

"This is an active investigation with a lot of moving parts," Shannon Moss, state police spokesperson, said Wednesday.

A woman reacts at the scene of a multiple shooting, Tuesday, April 18, in Bowdoin.(AP Photo/Robert F. Bukaty)
A woman reacts at the scene of a multiple shooting, Tuesday, April 18, in Bowdoin.(AP Photo/Robert F. Bukaty)

The day before the shootings, an anguished man believed to be Eaton posted a roughly two-minute live video on Facebook criticizing people who he said are Christian and don't give people a second chance. "What good does it do to hate somebody?" he said, choking back tears on the video. "You know, it destroys you."

On the day he was released from prison, the man believed to be Eaton posted on Facebook that he was feeling thankful. "It's finally over. There are so many people I can't wait to see."

Moss confirmed that state police were aware of the video, and that it's part of their investigation.

Eaton, who was living in Bowdoin, was charged with four counts of murder but was not immediately charged in the highway shootings, she said. He was jailed while awaiting a court appearance. It was unclear if he had an attorney to speak on his behalf, a jail official said Wednesday.

The names of the victims were not released, and state police didn't discuss any possible motive. The four bodies were taken to the state medical examiner's office in Augusta for positive identification and autopsies.

The seven people shot Tuesday were the latest victims of mass shootings in the U.S., whose targets included a Christian elementary school in Nashville, Tennessee; a bank in Louisville, Kentucky, and a Sweet Sixteen party in a small city in Alabama.

A Maine State police cruiser drives out of a crime scene in Bowdoin, Maine, Wednesday, April 19. A Maine man who police say killed four people in a home and then shot three others randomly on a busy highway had been released days earlier from prison, a state official said Wednesday. (AP Photo/Rodrique Ngowi)
A Maine State police cruiser drives out of a crime scene in Bowdoin, Maine, Wednesday, April 19. A Maine man who police say killed four people in a home and then shot three others randomly on a busy highway had been released days earlier from prison, a state official said Wednesday. (AP Photo/Rodrique Ngowi)
 

Ian Halsey, of Bowdoinham, said that two cousins were shot and that his uncle suffered shrapnel injuries in a single car. One of his cousins is in critical condition, and none of the family knew the shooter, he said.

"They were just passersby in the wrong place at the wrong time," he said of his family. "It's horrible what happened."

In Bowdoin, Denise Pride, 58, a neighbor who lives in a farmhouse down the street from the location of the four deaths, said members of the rural community were shaken by the tragedy. The house where the killings took place is in a wooded area of rolling hills and farms, and houses range from mobile homes to large estates.

Pride said one of the victims was famous for delivering baked goods to neighbors on holidays.

"They were very kind people," Pride said. "The neighbors were texting, shocked that it happened, and to them."

Eaton was charged over the past decade with more than a half-dozen crimes and served an eight-month sentence last year for assault, according to state records. Past convictions included aggravated assault, a felony that would prevent him from legally having a firearm.

The origins and ownership of the firearms used in Tuesday's shootings were unclear. State police declined to comment on the weapon that was used.

In Bowdoin, yellow crime tape hung where the shootings took place in a home flanked by woods at the end of a long, gravel driveway. Detectives and evidence technicians remained in the home collecting evidence late Tuesday, long after hearses left the driveway.

At one point, a woman spoke to police outside the house, then dropped to her knees and sobbed.

In Yarmouth on Wednesday, traffic flowed normally on Interstate 295, where a day before the three people were shot in cars and the gunman was apprehended.